虽然大多数 PCB 都是按照 IPC-A-600/IPC-A-610 2 级标准生产和组装的,例如消费电子、计算机外围设备、电信和无线、物联网、机器人、LED 和照明、测试和测量、工业控制。但对于同一特殊领域,必须应用 IPC-A-600/IPC-A-610 3 级,例如汽车、医疗、军事、航空、生命支持系统等。军事和航空甚至需要 IPC 3/A 级,其标准高于 3 级。
我们可以提供按照IPC Class 3和IPC Class 3/A生产的PCB,以满足PCB行业的最高标准。
IPC-A-600 3 级 PCB 的主要验收标准
IPC 2 级 PCB 验收标准: PTH壁厚>=20um。
IPC 3 级 PCB 验收标准: PTH壁厚>=25um。
IPC 2 级 PCB 验收标准: 90°以下时环断裂。
IPC 3 级 PCB 验收标准: 最小环尺寸:0.05mm。
IPC 2 级 PCB 验收标准: 间隙不超过最小导线间距的 30%
IPC 3 级 PCB 验收标准: 间隙不超过最小导线间距的 20%
IPC 2 级 PCB 验收标准: 孔壁内部出现空洞在一定条件下是可以接受的。
IPC 3 级 PCB 验收标准: 孔壁内部不接受任何空洞。
IPC 2 级 PCB 验收标准: 在某些条件下,吸管间隙是可以接受的。
IPC 3 级 PCB 验收标准: 不允许有吸管间隙。
IPC 2 级 PCB 验收标准: 吸湿排汗不超过 100 微米。
IPC 3 级 PCB 验收标准: 吸湿排汗不超过 80 微米。
IPC-A-610 3 级 PCB 组装的主要验收标准
至于PTH孔,重点是孔壁锡填充量。通孔引脚所需的孔壁填充量,IPC 2级为50%,但IPC 3级则需要75%。由于锡膏在小的镀铜孔(PTH)中放置时可能易碎,因此我们建议在设计时使用15 mil以上的元件引脚PTH尺寸。这样,每边将有7.5 mil的空间,使锡膏更容易填充孔壁。无论如何,PTH引线应该始终被完美焊接,并且始终需要遵循客户的标准和要求。
IPC 2 级 PCB 组装验收标准: 孔壁填充量50%以上。
IPC 3 级 PCB 组装验收标准: 孔壁填充量75%以上。
IPC 2 级 PCB 组装验收标准: SMD 元件垂直表面上明显有锡
IPC 3 级 PCB 组装验收标准: 最小焊点高度为 0.5 毫米,或 25% 焊料 + SMD 元件高度
IPC 2 级 PCB 组装验收标准: 侧面突出部分小于元件/焊盘面积的 50%
IPC 3 级 PCB 组装验收标准: 侧面突出部分小于元件/焊盘面积的 25%
IPC 2级标准: 端接焊点宽度至少为 SMD 元件/PAD 的 50%
IPC 3级标准: 端接焊点宽度至少为 SMD 元件/PAD 的 75%
IPC 2级标准: 侧边突出量小于引脚的50%或最小0.5mm(以较小者为准)
IPC 3级标准: 侧边突出量小于引脚的75%或最小0.5mm(以较小者为准)
If pursuing cost-effective FPC manufacturing services, choosing a Chinese manufacturer is the best choice. As a manufacturing powerhouse, China has abundant resources, cheap labor, and a large number of technical personnel. We recommend Haibo, a Chinese FPC assembly service provider with over 10 years of experience, who has performed outstandingly in various aspects
Efficient and reasonable quotation:There is an efficient quotation process to assist you in making decisions, providing reasonable prices and highly competitive quotes in China.
High quality and reliable products:Produce high standard printed circuit boards, manufacture and test according to specifications, international standards, and internal controls, and conduct pre production inspections to ensure robust processes.
Quick and on-time delivery:The assembly equipment is in good condition, with high productivity, minimal downtime, short delivery time, and also provides urgent services.
Timely and effective response:Always respond to customer needs, provide accurate information, answer questions through multiple channels, and offer one-stop services.
Strong technical strength:China's FPC manufacturing technology is leading, and Haibo has a complete SMT solution that covers assembly, inspection, and other capabilities. It also provides prototype production and customization services.
mobile phone: 86-15113315665
Contact: Chen Changhai
mobile phone: 86-18676922028
E-mall: haibo_fpcba1668@163.com
Address: 3rd Floor, Building 2, Fuxing Industrial Park, Building B, Chuangye 1st Road, Jiangbian Community, Songgang Street, Bao'an District, Shenzhen